Harvest season in Karabuk’s Safranbolu town is in autumn, when fields are covered with purple flowers. The rare spice is one of the most expensive in the world, with one gramme going for at least $5 in bazaars. Ismail Yilmaz is a 48-year-old saffron grower in the Karabuk province town of Safranbolu, in the Black Sea region of northern Turkey. He tells TRT World that his family has been growing ...